Osmia/Osmia-Faber-Castell.....the gold is as good as the steel.....both are grand.
And you can pick if you want semi-flex....with the nib with a Diamond on it, or maxi-semi-flex, the nib with Supra on it.
I have both semi&maxi in both stainless steel and gold...both are grand. I have some 8.
They are flat stubs....minimum tipping.
Of the companies that offered nibs with some flex...semi-maxi, Soennecken, MB, Osmia, Original Reform (pre mid '50s ) Geha, and Kaweco were all stubbish.
Lamy and Tropen...nails not. Artus a 'true' regular flex like the Pelikan 120 or the Geha school pens all have an American Bump Under.
I find the obliques of that era due to the stubbishness to go with semi/maxi great.
I have some 16 obliques of that era. In a mix of semi(26)&maxi(13-or so).
Wisdom of the Founders, and their check and balances system is more a wonder than I thought.
Due to Mauricio's improved definition of Super-flex, I try not use the term Easy Full Flex, but fail...sigh.
Semi-flex is an “almost” flex; not a ‘flex’ nib. It is great for regular writing with a touch of flair. It can give you some fancy; but it is not made for real fancy writing. For bit more of that get a maxi-semi-flex. Both spread tines 3X. Those are not "Flex" nibs.
Wider than Normal does not exist. Wider than Japanese does. Every company has it's very own standard + slop/tolerance. Developed from the users of it's pens and inks only; not the users or inks of other companies pens. The size you grind a nib to, is your standard only. Paper and ink matter to nib width. Thank god for 1/2 sizes or it would be boring.